IS2852:1998 ( Reaffirmed 2002 ) Indian Standard CARPENTERS' AUGERS SPECIFICATION ( First Revision ) KS 25. loo. 30 0 BIS 1998 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFARMARG NEW DELHI 110002 December 1998 Price Group 2 Woodworking Hand Tools Sectional Committee, PE 07 FoREwoRD This Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by the Woodworking Hand Tools Sectional Committee had been approved by the Production Engineering'Division Council. This Indian Standard was first issued in 1976. This revision has been taken up to bring it in line with the current practices followed in the industry. This standard is one of a series of Indian Standards for woodworking and carpenter's tools. The sizes of the handles have also been specified and it is recommended that the purchasers should clearly state in their enquiry and order whether the augers are to be supplied along with the handles. For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed, or calculated, expressing the result of a test, shall be rounded off in accordance with IS 2:.1960 `Rules for rounding off numerical values (rev&d)`. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. IS 2852 : 1998 Indian Standard CARPENTERS' AUGERS (First 1 SCOPE SPECIFICATION Revision ) 6 HANDLES 6.1 The handles for augers shall form a separate item This standard specifies the dimensions and other requirements for carpenters' augers. 2 REFERENCES The following standards contain provisions which through reference in this text, constitute provision of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below: IS No. in the enquiry and order and shall not be supplied unless specifically ordered. 6.2 When the handles are required to be supplied with augers, they shall conform to the shape and dimensions as given in Table 2 and the requirements from those of Class V as given in IS 620. 7MANUFACTURE The auger and the eye shall be manufactured separately. The shank of the auger shall be fitted with the eye of the auger so rigidly as to withstand the tests laid down in 10. 8 WORKMANSHIP AND FINISH The augers shall be free from cracks, seams and other defects and shall be smoothly finished. The screw lead shall lie in the centre of the cutting edges which shall cut equally and simultaneously. The nose, the twist and the round shank shall be concentric with the axis of the tool. The working ends shall be ground ready for use. 9 SAMPLING 9.1 Lot Title Wooden tool handles general requirements (fourth revision ) Tool and die steels - Specification General tolerances: Part 1 Tolerances for linear and angular dimensions without individual tolerance indications (third revision) Sampling inspection procedures: Part 1 Attribute sampling plans indexed by acceptable quality level (AQL) for lot-by-lot inspection (second revision) 620 : 1985' 3748: 1990 2102 (Part 1) : 1993 2500 (Part 1) : 1992 3 SHAPE AND DIMENSIONS 3.1 The general shape and dimensions of carpenters' augers shall be as given in Table 1. 3.2 For untoleranced dimensions, the coarse class according to IS 2 102 (Part 1) shall be followed. 4 MATERIAL The augers with the exception of auger eyes shall be made from good quality carbon or alloy tool steel. 5 HARDNESS The twist and the .cutting edge of augers shall be hardened and tempered to produce a hardness reading within the range 450 to 520 HV (245 to 5 1 HRC) except that the hardness reading at the commencement of the twist adjacent to the shank shall be within the range 360 to 420 HV (~35 to 42 HRC). I In any consignment, all the augers of the same size manufactured from the same material under similar conditions of production shall be grouped together to constitute a lot. 9.2 For ascertaining the conformity of the lot, the procedure for sampling and inspection as given in IS 2500 (Part 1) shall be followed. The type of sampling plan inspection level and acceptable quality level (AQL) to be followed for various characteristics shall be as given in 9.2.1. the conformity for all the requirements, a single sampling plan with inspection level II and AQL of 1.5 percent as given in Table I and IIA of IS 2500 (Part 1) shall be followed. 10 TESTS 10.1 Shock Test 9.2.1 For ascertaining The auger shall be raised to a height of 450 to 600 mm IS 2852 : 1998 Table 1 Dimensions of Carpenters' Augers (CIuuse3.1) SECTION XX All dimensions in millimetres. Nominal Length Size of lb&t A Excluding Screw Lead B Sectional Thickness of `lwst c Lead of the Twist Diameter of the Screw Lead D Length of the Screw Lead E Pitch of the Screw Lead Single Start Outside Diaimeter of wit Dismeter of Shank G (Max) Width of Eye H Bone Overall DiaLength meter L of Eye r:1 (1) 6 10 12 14 16 18 20 22 25 27 33 39 45 50 60 66 (2) 135 145 150 150 160 160 160 175 185 185 190 200 210 225 235 250 (3) 2 3 3 3 3 4 4 4 5 5 6 6 7 7 8 9 (4) 20 25 35 35 40 40 40 50 55 55 65 75 100 100 125 125 (5) 3 4 5 5 5 5 5 5 6 6 8 8 11 11 12 12 (6) 6 8 9 9 11 11 11 11 12 12 16 16 19 19 22 22 (7) 2 2 2.5 3 3 3 3 3 3 3 3 3 3 3 2.5 2.5 (8) 5 9 11 13 15 17 19 20 22 24 30 35 40 45 55 60 (9) 6 8 10 10 10 11 11 12 13 14 15 16 17 19 19 20 (10) 24 24 28 28 32 32 32 32 33 35 40 40 44 51 56 56 (11) 16 16 (12) 525 530 575 600 600 600 600 600 600 625 650 650 700 700 750 750 19 19 22 22 22 22 25 27 27 27 27 30 35 35 above the upper face of a solid block and brought down quickly to cause the auger shank and auger eye joint to strike a sharp blow against the upper face of the block. The auger shall be given three such blows and shall show no sign of damage or distortion after the test. 10.2 Wisting Test The shank of the auger shah be securely and positively gripped adjacent to the twist in a vice or other suitable fixture and a steel bar having a length equal to that of 2 the appropriate handle and a diameter 1.5 mm smaller than the bore of the auger eye shall be disposed centrally in the auger eye and used to subject the auger shank to the maximum torque that can be applied manually. The torque shall act normally about the axis of the auger and the angle through which the shank is twisted shall in no case exceed 30". After the test the auger shall show no sign of damage, fracture or flaw. 10.3 Performance Test The auger shall bore satisfactorily across the grain to IS Table 2 Dimensions of Auger Handles ( Clause 6.2 ) 2852 : 1998 TAPER 1:30 ON DIA LINES INDICATE APPROX POSITION OF EYE WHEN WORKING _--- --_-- -r---_+_ I C ./_.__5._6 I -I / 1 ,- - * L - All dimensions Nominal Size of Auger (see A, Table 1) Bore Diameter uf Eye of Auger (see J, Table 1) in millimetres. Overall Length Length of Tapered Centre Diameter of Grip No@nnl Size Diameter at Centre of Taper A L (4) 325 C (5) D (6) (1) 6,lO (2) 16 (3) 16 12,1'4 16.18, 20, 22 25 27, 33, 39, 45 50 60, 66 19 22 25 27 30 35 19 22 25 27 30 35 325 350 385 400 500 600 100 105 120 125 135 175 200 14 17 20 24 25 30 33 a minimum depth of 75 percent of the length of its twist, into a piece of sound sal or similar hardwood of suitable dimensions. The tool shall not be withdrawn during the test. When the bore reaches the depth given above, the auger shall withdraw easily. After the test the auger shall show no sign of damage, fracture or flaw. 11 DESIGNATION 11.1 The carpenters' augers shall be designated by nominal size and the number of this specification. Example: A carpenters' auger having nominal diameter A = 12 mm shall be designated as: Auger IS 2852 12 MARKING 12.1 Each auger shall be marked with the nominal diameter and the manufacturer's name, initials or trade12 12.1.1 BIS Certi$cation Marking Each auger may also be marked with the Standard Mark. 12.1.1.1 The use of the Standard Mark is governed by the provision of Bureau of Indian Standards Act, 1986 and the Rules and Regulations made thereunder. The details of conditions under which the licence for the use of Standard mark may be granted to manufacturers or producers may be obtained from the Bureau of Indian Standards. 13 PRESERVATIVE TREATMENTAND PACKING 13.1 The body of each auger shall be coated with suitable anti-corrosive paint ar.d the ground portion shall be coated with anti-corrosive grease or varnish. 13.2 The augers shall be securely packed in suitable case of a size convenient for handling, or as specified by the purchaser. 3 Bureau of Indian Standards BIS is a statutory institution established under the Bureau oflndian Standards Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country. Copyright BIS has the copyright of all its publications. No part of these publications may be reproduced in any form without the prior permission in writing of BIS. This does not preclude the free use, in the course of implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publications), BIS. Review of Indian Standards Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of `BIS Handbook' and `Standards : Monthly Additions'. This Indian Standard has been developed from Dot : No. PE 07 ( 0 179 ). Amendments Issued Since Publication Amend No. Date of Issue Text Affected BUREAU Headquarters: OF INDIAN STANDARDS Telegrams: Manaksanstha ( Common to all offices ) Telephone 323 76 17 3233841 337 84 99, 337 85 61 337 86 26, 337 86 62 1 60 38 43 60 20 25 23502 16,2350442 235 15 19,23523,15 8329295,832?858 8327891,8327892 Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002 Telephones : 323 01 31,323 94 02, 323 33 75 Regional Offices: Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg NEW DELHI 110002 Eastern : l/14 C. I. T. Scheme VII M, V. I. P. Road, Maniktola CALCUTTA 700054 Northern : SC0 335-336, Sector 34-A, CHANDIGARH 160022 Southern : C. I. 7 Campus, IV Cross Road, CHENNAI 600113 Western : Manakalaya, E9 MIDC, Marol, Andheri (East) MUMBAI 400093 BHUBANESHWAR. BHOPAL. BANGALORE. Branches : AHMADABAD. COIMBATORE. FARIDABAD. GHAZIABAD. GUWAHATI. HYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR. PATNA. PUNE. THIRUVANANTHAPURAM. Printed at New India Printing F'ress, Khuja, hdis